China's Sun Yang stretches ahead of a practice at the Aquatics Center at the Olympic Park ahead of the 2012 Summer Olympics, Thursday, July 26, 2012, in London. Opening ceremonies for the 2012 London ... more

China's Sun Yang stretches ahead of a practice at the Aquatics Center at the Olympic Park ahead of the 2012 Summer Olympics, Thursday, July 26, 2012, in London. Opening ceremonies for the 2012 London Olympics will be held Friday, July 27. (AP Photo/Lee Jin-man) less